Texas Instruments TPS62065 Handleiding

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TPS6206x 3-MHz, 2-A, Step-Down Converter in 2-mm × 2-mm SON Package

1 Features

•3-MHz Switching Frequency

•V

IN

Range from 2.9 V to 6 V

•Up to 97% Efficiency

•Power Save Mode / 3-MHz Fixed PWM Mode

•Power Good Output

•Output Voltage Accuracy in PWM Mode ±1.5%

•Output Capacitor Discharge Function

•Typical 18 µA Quiescent Current

•100% Duty Cycle for Lowest Dropout

•Voltage Positioning

•Clock Dithering

•-40°C to 125°C Operating Junction Temperature

•Supports Maximum 1-mm Height Solutions

•Available in a 2 mm x 2 mm x 0.75 mm WSON

2 Applications

•Point of Load (POL)

•Notebooks, Pocket PCs

•Portable Media Players

•DSP Supply

3 Description

The TPS6206x is a family of highly efficient

synchronous step down DC/DC converters. They

provide up to 2-A output current.

With an input voltage range of 2.9 V to 6 V, the device

is a perfect fit for power conversion from a 5-V or 3.3-

V system supply rail. The TPS6206x operates at 3-

MHz fixed frequency and enters power save mode

operation at light load currents to maintain high

efficiency over the entire load current range. The

power save mode is optimized for low output voltage

ripple. For low noise applications, TPS62065 can be

forced into fixed frequency PWM mode by pulling the

MODE pin high. TPS62067 provides an open drain

power good output.

In the shutdown mode, the current consumption is

reduced to less than 1 µA and an internal circuit

discharges the output capacitor.

TPS6206x family is optimized for operation with a tiny

1 µH inductor and a small 10-µF output capacitor to

achieve smallest solution size and high regulation

performance.

It is available in a small 2-mm × 2-mm × 0.75-mm 8-

pin WSON package.

Device Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

TPS62065

TPS62067

WSON (8)2.00 mm × 2.00 mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

PVIN

PGND

EN

FB

PG

L

1.0H

m

SW

C

10F

OUT

m

V

1.8 V 2A

OUT

V= 2.9 V to 6 V

IN

AVIN

AGND

C

22 pF

ff

R

100 k

PG

W

R

180 k

2

W

R

360 k

1

W

C

10

IN

mF

Copyright©2016,TexasInstrumentsIncorporated

Typical Application Schematic

50

55

60

65

70

75

80

85

90

95

100

Efficiency-%

00.250.50.7511.251.51.752

I-LoadCurrent-A

L

V=4.2V

IN

V=5V

IN

V=3.7V

IN

L=1.2H(NRG4026T1R2),

C=22F(0603size),

V=3.3V,

Mode:AutoPFM/PWM

m

m

OUT

OUT

Efficiency vs Load Current

www.ti.com

TPS62065, TPS62067

SLVS833E – MARCH 2010 – REVISED OCTOBER 2020

Copyright ©2020 Texas Instruments Incorporated

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Product Folder Links: TPS62065TPS62067

TPS62065, TPS62067

SLVS833E – MARCH 2010 – REVISED OCTOBER 2020

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties